Liquid lifting device



July 9,1935. J. A. coY ET AL LIQUID LIFTING DEVICE Filed Aug. 27, 1954 2Sheets-Sheet 1 Invcnlor l 9, 1935- J. A. coY ET AL LIQUID LIFTING DEVICE2 Sheets-Sheet 2 Filed Aug. 27, 1934 Inventors L/ase Patented July 9,1935 I UNITED STATES? P OFFICE Joseph A. Coy and Robert W Drake,Oklahoma V City; Okla. j

Application August 27,,- 1 934, Serial No. 741,689

' 2 mm." (cries-24s) V This invention relates to a liquid liftingdevice, mainly designed for lifting liquids out of a well, the generalobject of the invention being to provide means operated by relativelylow fluid press sure for, lifting the liquid, through means of a liquidoperated float provided with means for controlling the flow of fluidpressure.

The invention also consists in certain other features of constructionand in the combination and arrangement of several parts, to behereinafter fully described, illustrated in the accompanying drawingsand specifically pointed out in the appended claims.

In describing the invention in detail, reference will be had to theaccompanying drawings wherein like characters denote like orcorresponding parts throughout the several views, and in which:'-

Fig. 1 is a longitudinal sectional view through the invention.

Fig. 2 is a section on the line 2-2 of Fig. 1.

Fig. 3 is a section on line 33 of Fig. 1.

Fig. 4 is a top plan view of the float.

Fig. 5 is an elevation showing the valve operating means.

Fig. 6 is a top plan view of Fig. 5.

In these drawings, the numeral I indicates a cylinder and the numeral 2indicates a smaller cylinder located in and spaced from the cylinder Iand having its upper end closed and its lower end open, a channel ring 3being placed between the lower end of the cylinder 2 and a lower part ofthe cylinder I. This ring has a plurality of ports 4 in its bottom part,each of which is con- 35 trolled by a valve 5 which normally closes theport 4. An inlet pipe ii is connected to the lower end of the cylinder Iand contains a port I controlled by a ball valve 8 and a pipe 9 isconnected to the upper end of the cylinder I. The 40 numeral Itindicates a fluid pressure line while the numeral II indicates a ventline, portions of these lines passing through the chamber formed by thecylinder 2. In the upper part of this chamber, each of the lines III andII is provided 45 with a discharge I2 controlled by a valve I3 so thatwhen the valve is open, the lines will be in communication with the topof the chamber formed by the cylinder 2.

A float M has notches I5 therein through 50 which'parts of the lines Illand II pass so that the float is guided by said parts and the float isprovided with a centrally arranged hole I6 through which passes rod II.The rod is guided for vertical movement in the upper and lower 5 spidersI8 arranged in the cylinder 2 and said.

rodis keyed tosaid spiders so that the rod is preventedfrom havingrotary movement. The rod carries the upper and lowerdisks I9 whichform'stops for the float-so that when the float strikes 'a disk, the rodwill be caused to move "5 with the float.

-='Ihev valves. I3 are connected together by a stemlll which is soconnected with the valves that when the rod is turned in one direction,one valve will be open and the other closed and vice 10 versa. A yoke 2|is connected with the rod and has its limbs passing between the upperand lower pairs of pins 22 carried by the upper end of the rod II.

As will be seen, water or other liquid rising in 5 the pipe 6 will flowpast the valve 8 into the cylinder 2 and thus lift the float I4. Whenthe float strikes the upper disk, the rod II will move with the floatand thus cause the yoke 2| to turn the rod 20 so as to close. the valvel3 in the vent 0 pipe I I and open valve I3 in the pressure line Ill.Thus, compressed air or gas will pass from the line I0 into the upperpart of the chamber formed by the cylinder 2 and this pressure willforce the liquid from the chamber past the 5 valves 5 into the chamberformed between the cylinders I and 2 into the pipe 9. As the level ofthe liquid drops in the cylinder 2, the float of course will drop untilits strikes the lower disk I9 and then the rod II moves downwardly so as30 to cause the yoke to turn the valve rod 20 to close the pressurevalve and open the vent valve so that the fluid pressure can escape fromthe chamber formed by the cylinder 2. Thus, the flow of liquid into thechamber again takes place which raises the float and thus the action isrepeated.

As many of these devices are placed in a well or the like as desired,Fig. 1 showing the pipes I El and I l extended so that by connectingseveral of these devices, a definite distance apart and operating themin series, relaying liquid from one to another, liquid can be liftedfrom any depth to the surface with only enough air or gas pressure tooperate the top mechanism. The same air or gas pressure is supplied toeach mechanism as the liquid is lifted out of the top one, to thesurface, the next located below will be the first sup: plied withsuccessive discharge. The same op eration will be repeated clear on downto the last one.

Any suitable means may be used for operating the valves from the floatdrop. For instance, a toggle arrangement may be used for impartingmovement to the valves from the float drop.

It is thought from the foregoing description that the advantages andnovel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction andin the combination and arrangement of the several parts, provided thatsuch changes fall within the scope of the appended claims.

We claim: 7

1 A liquid lifting device comprising a. chamber-forming member, acylinder surrounding the same and spaced therefrom, the lower end of thechamber-forming member being open at the bottom and its upper endclosed, and said lower end being spaced from the lower end of thecylinder, a pipe connected to the lower end of the cylinder andextending into a supply of liquid, a downwardly closing check valve forsaid pipe, check valves closing downwardly and by which the liquid fromthe lower end of the cylinder enters the space between thecha'mber-Iorming member and said cylinder, adischarge pipe connected tothe upper end of the cylinder, vent and pressure line pipes havingportions passing through the chamber-forming member and each having aport opening into the toppart of the chamber-forming member, a valvecontrolling these parts, a float in the chamber-forming member guided bythe aforesaid vent and pressure line pipes, and means operated by themovement of the float for actuating the valves.

2. A liquid lifting device for incorporation between casing sections ina well comprising an outer cylinder, a valve controlled inlet conductorconnected with the bottom of the outer cylinder, an outlet conductorconnected with the top of the cylinder, a tubular chamber-forming memberconfined within the outer cylinder and spaced from the walls thereof toprovide an outer and inner chamber, said chamber-forming member closedat the top and open at the bottom, downwardly closing check valvesbetween the open end of the chamber-forming member and the outerchamber, vent and pressure line pipes having portions passing throughthe chamber-forming member and each having a discharge port opening intothe top of the chamber-forming member, a valve in each of the vent andpressure discharge ports, a float confined within the chamber-formingmember and in the inner chamber slidably arranged on the vent andpressure line pipes and a rod actuated by the float and connected withthe valves for alternately closing one valve and opening the other.

JOSEPH A. COY. ROBERT W DRAKE.

